PROCESS FOR MANUFACTURING A LAUNDRY DETERGENT BAR

摘要

The present invention relates to an improved process for the manufacture of a laundry detergent bar including the steps of providing at least one detersive surfactant, and at least one adjunct bar ingredient, and mixing the detersive surfactant and the adjunct bar ingredient to form a detergent premix. A shear-sensitive material is added to the detergent premix, and mixed to form a homogenized detergent composition. The homogenized detergent composition is then extruded under shear into the shape of a laundry detergent bar. In this manufacturing process, the shear rate in the extruding step is from about 1 to about 1000 min<-1>, and the total shear in the homogenization step and the extruding step is from about 300 to about 5000.